CN109962192A - Battery module - Google Patents
Battery module Download PDFInfo
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- CN109962192A CN109962192A CN201811328156.7A CN201811328156A CN109962192A CN 109962192 A CN109962192 A CN 109962192A CN 201811328156 A CN201811328156 A CN 201811328156A CN 109962192 A CN109962192 A CN 109962192A
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- Prior art keywords
- battery
- battery module
- bump
- tension band
- multiple batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0481—Compression means other than compression means for stacks of electrodes and separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
- H01M10/0562—Solid materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
It provides and is able to suppress due to the charge and discharge with battery and the damaged battery module of battery caused by battery generates expansion and shrinks.A kind of battery module, the confining part of multiple batteries and the multiple batteries of constraint with stacking, wherein, confining part includes being configured at a pair of end plate at the both ends of stacking direction of multiple batteries and linking a pair of end plate and constrain the tension band of multiple batteries with pressurized state, and tension band has the bump for being able to carry out flexible deformation.
Description
Technical field
This disclosure relates to battery module.The disclosure in particular to has multiple batteries of stacking and constrains the pact of multiple batteries
The battery module of beam component.
Background technique
In recent years, various battery modules are disclosed.
For example, Patent Document 1 discloses battery module, the battery module use be configured at the multiple monocells of stacking and
At battery block both ends end plate and metal tape that the end of end plate links fixed into the battery block.
Patent Document 2 discloses the module of fuel cell, the stacking direction of the module of the fuel cell in battery pile
Two sides configure end plate across the battery pile, have the secure component for fastening the end plate each other.
Patent Document 3 discloses battery module, the stacked battery of the battery module by signature pressing plate, deformed plate and
End plate constraint.
In addition, Patent Document 4 discloses the modules for the fuel cell for having the end plate with raised areas.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2015-207553 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2010-003636 bulletin
Patent document 3: Japanese Unexamined Patent Publication 2015-076188 bulletin
Patent document 4: No. 4621815 bulletins of Japanese Patent No.
Summary of the invention
In the battery module of the construction of multiple batteries with constraint stacking, with charge and discharge, there may be batteries
Expansion and contraction.Thus, a pair of end plate and company at the both ends of the stacking direction using the multiple batteries for being configured at stacking
It ties a pair of end plate and the tension band of multiple batteries is constrained with pressurized state come in the case where constraining such multiple batteries, it is adjoint
The expansion and contraction of battery, load more than restraining force appropriate are applied to tension band, and tension band generates plastic deformation as a result,
And it is damaged to be possible to meeting.
Thus, the disclosure is designed to provide the battery module for being able to suppress such problems.
Present inventors found that the above subject can be solved using unit below.
<scheme 1>
A kind of battery module has multiple batteries of stacking and constrains the confining part of the multiple battery, wherein
The confining part includes a pair of end plate and connection for being configured at the both ends of stacking direction of the multiple battery
The pair of end plate and the tension band that the multiple battery is constrained with pressurized state,
The tension band has the bump for being able to carry out flexible deformation.
<scheme 2>
According to battery module documented by scheme 1, wherein
The bump is only located at the part opposite with the side of the end plate.
<scheme 3>
According to battery module documented by scheme 1 or 2, wherein
Also there is intermediate plate between the multiple battery.
<scheme 4>
According to battery module documented by scheme 3, wherein
The bump is only located at the part opposite at least one side of the end plate and the intermediate plate.
<scheme 5>
According to battery module documented by any one scheme in scheme 1~4, wherein
The tension band is made of metal or fiber-reinforced plastic.
<scheme 6>
According to battery module documented by any one scheme in scheme 1~5, wherein
The bump is obtained by embossing processing.
<scheme 7>
According to battery module documented by any one scheme in scheme 1~6, wherein
The multiple battery is all-solid-state battery.
According to the battery module of the disclosure, it is able to suppress the expansion of battery and shrinks the breakage of caused tension band.
Detailed description of the invention
Fig. 1 is the schematic sectional view for showing a mode of battery module for the disclosure.
Fig. 2 is the perspective view for showing the appearance of a mode of battery module of the disclosure.
Fig. 3 is the schematic sectional view for showing a scheme of tension band generation plastic deformation for previous battery module.
Fig. 4 is the schematic sectional view for showing a mode of battery module for the disclosure.
Fig. 5 is the schematic sectional view for illustratively showing the shape of bump of the disclosure.
Fig. 6 is the perspective view for showing a mode of bump for the disclosure.
Fig. 7 is the schematic sectional view for showing a mode of battery module for the disclosure.
Fig. 8 is the skeleton diagram for showing the mode when battery module of the disclosure to be equipped on to vehicle.
Description of symbols
10,20,30,40,70: multiple batteries；11,12,21,22,31,32,41,42: end plate；13,14,23,24,33,
34,43,44,73,74: tension band；3a, 13a, 14a, 23a, 24a: bump；3a1、3a2、3a3、3a4: protrusion；43a,43b,
44a, 44b, 73a, 74a: bump；25,75: intermediate plate；100,200,300,400,700: battery module.
Specific embodiment
Hereinafter, explaining embodiment of the present disclosure in detail referring to attached drawing.In addition, the disclosure be not limited to it is below
Embodiment can carry out various modifications in the range of the main idea of the disclosure and implement.In addition, in the description of the drawings, it is right
Identical element adds identical appended drawing reference, and the repetitive description thereof will be omitted.But, mode shown in figure below is the disclosure
It illustrates, does not limit the disclosure.
The battery module of the disclosure is the battery mould of the confining part of multiple batteries and the multiple batteries of constraint with stacking
Block,
Confining part includes a pair of end plate and connection a pair of end plate for being configured at the both ends of stacking direction of multiple batteries
And the tension band of multiple batteries is constrained with pressurized state,
Tension band has the bump for being able to carry out flexible deformation.
In addition, in the disclosure, " flexible deformation " means to apply external force to object and make its deformation, it is outer when removing later
When power, it is restored to the deformation of original state.Comparatively with it, " plastic deformation " means to apply external force to object and make its change
Shape, later deformation remaining removing external force.
Fig. 1 is the schematic sectional view for showing a mode of battery module for the disclosure.As shown in Figure 1, battery module 100
The confining part of multiple batteries 10 and the multiple batteries 10 of constraint with stacking, confining part at this time includes being configured at stacking
The a pair of end plate 11 and 12 at the both ends of the stacking direction of multiple batteries 10 and connection a pair of end plate 11 and 12 and with the shape that pressurizes
The tension band 13 and 14 of the multiple batteries 10 of modal constraint.Tension band 13 has the bump 13a for being able to carry out flexible deformation, tension
There is the bump 14a for being able to carry out flexible deformation with 14.
In addition, Fig. 2 is the perspective view for showing the appearance of a mode of battery module of the disclosure.In battery module 200
In, there is multiple batteries 20, confining part and the centre being configured between multiple batteries 20 as other components of stacking
Plate 25.Confining part at this time include be configured at the both ends of stacking direction of multiple batteries 20 a pair of end plate 21 and 22 and
Connection a pair of end plate 21 and 22 and the tension band 23 and 24 that multiple batteries 20 are constrained with pressurized state.Tension band 23 has energy
Enough carry out the bump 23a of flexible deformation.Bump 23a is only located at tension band 23, opposite with the side of intermediate plate 25
Part.Similarly, tension band 24 has the bump 24a for being able to carry out flexible deformation.Bump 24a is only located at tension band 24
, opposite with the side of intermediate plate 25 part.In addition, will be described later about intermediate plate 25.
The battery module of the disclosure is able to suppress the expansion of battery and shrinks the breakage of caused tension band.Its principle
It is thought as follows described.In addition, the principle is not used to limit the disclosure.
In the case where the charge and discharge of adjoint battery as described above generate the expansion and contraction of battery, when be applied to
Toward battery module used in tension band load be restraining force appropriate more than when, tension band arbitrary position generate modeling
Property deformation, it is possible to can be damaged.
For example, battery module 300 previous shown in Fig. 3 (a) has multiple batteries 30 of stacking and constrains multiple batteries
30 confining part, confining part at this time include be configured at a pair of end plate 31 at the both ends of stacking direction of multiple batteries 30 with
And 32 and connection a pair of end plate 31 and 32 and the tension bands 33 and 34 of multiple batteries 30 is constrained with pressurized state.At this point,
Power band 33 and 34 does not have the bump for being able to carry out flexible deformation.When generating the expansion and contraction of multiple batteries 30,
As shown in Fig. 3 (b), tension band 33 and 34 generates plastic deformation at arbitrary position, and there are also damaged positions.
Relative to previous battery module, the tension band of the battery module of the disclosure, which has, is able to carry out the recessed of flexible deformation
Protrusion.Therefore, in the case where generating the expansion and contraction of battery, which preferentially generates flexible deformation.In this way, recessed
Protrusion can absorb the change in size load caused by tension band generated by the expansion of battery and contraction.As a result, can also
Enough inhibit tension band generate plastic deformation and it is damaged.
That is, for example, in battery module 100 shown in Fig. 1, even if generating the expansion and contraction of multiple batteries 10, by
Flexible deformation is preferentially generated in the bump 13a of tension band 13 and the bump 14a of tension band 14, to also be able to suppress
Breakage caused by the plastic deformation of tension band 13 and 14.
" multiple batteries "
Battery module has multiple batteries of stacking.
Here, " multiple " mean two or more.That is, as long as the battery module of the disclosure is more than two with being laminated with
Battery.In the disclosure, the upper limit of the quantity of multiple batteries is not specifically limited, as long as being used according to the use of battery module
On the way, purpose is set.
In the disclosure, the type of battery is not specifically limited, such as or one-shot battery, secondary cell or combustion
Expect battery.Among them, multiple batteries of the disclosure are preferably to include to be electrolysed quality to constitute the component of battery all with solid
The all-solid-state battery of formation.
<all-solid-state battery>
Hereinafter, being described in detail in case where multiple batteries of the disclosure are all-solid-state batteries.
As the type of all-solid-state battery, can enumerate all-solid lithium battery, total solids sode cell, total solids magnesium cell with
And total solids calcium cell etc., wherein being especially preferred, particularly preferred all-solid lithium with all-solid lithium battery and total solids sode cell
Battery.It in addition, all-solid-state battery is either one-shot battery, is also possible to secondary cell, but with secondary cell is especially wherein excellent
Choosing.
All-solid-state battery can have 1 or more unit all-solid-state battery.In addition, unit all-solid-state battery can pass through
By positive electrode collector layer, positive electrode active material layer, solid electrolyte layer, negative electrode active material layer and negative electrode collector layer according to
This is sequentially laminated and is constituted.In turn, all-solid-state battery is with more than two unit all-solid-state batteries, root
It both can be ambipolar, or monopole type according to the lamination order of each component.
In addition, about positive electrode collector layer, positive electrode active material layer, solid electrolyte layer, negative electrode active material layer and
The respective structure member of negative electrode collector layer, is not specifically limited, and is able to use the known material that can be applied to all-solid-state battery
Material.
" confining part "
Battery module has the confining part for constraining above-mentioned multiple batteries.
Confining part includes a pair of end plate and connection a pair of end plate for being configured at the both ends of stacking direction of multiple batteries
And the tension band of the multiple battery is constrained with pressurized state.
<tension band>
As long as tension band is the component that can constrain multiple batteries with pressurized state, can be made of well known component.
For example, can be made of metal or fiber-reinforced plastic etc..As metal, stainless steel can be enumerated.In addition, strong as fiber
Change plastics, such as using carbon fiber reinforced plastic, fiberglass-reinforced plastic etc., but is not limited to them.
In the disclosure, tension band has the bump for being able to carry out flexible deformation.It is able to carry out hereinafter, explaining in detail
The bump of the flexible deformation.In addition, " bump for being able to carry out flexible deformation " is also referred to as " bump ".
(bump)
In the disclosure, bump can be located at the arbitrary part of tension band.For example, battery module shown in Fig. 1
In 100, bump 13a be located at the part opposite with the side of multiple batteries 10 on the stacking direction and with end plate 11 with
And 12 the opposite part in side whole position.In addition, bump 13a and 14a shown in FIG. 1 is symmetrically described,
But asymmetrical position can also be located at.
In the disclosure, bump is preferably located in only part tension band, opposite with the side of end plate.Its reason is such as
Under.In addition, the side of end plate refers to the side of the end plate orthogonal with the stacking direction of multiple batteries.
On the battery module that the bump of tension band is only located at the part opposite with the side of end plate can not only inhibit
It states the expansion of battery and shrinks the breakage of caused tension band, and is strong being applied with from the stacking direction of multiple batteries
In the case where external force (for example, side collision etc. of vehicle), above-mentioned bump is preferentially bent and generates flexible deformation, according to feelings
Condition generates plastic deformation, sometimes so as to inhibit the entirety of tension band to be deformed.That is, can be in the layer from multiple batteries
In the case that folded direction is applied with strong external force, the position that tension band is deformed is controlled.Thereby, it is possible to inhibit tension band to generate
The breakage of the part of deformation and battery caused by the contact of battery.
More specifically, it is compressed in battery because of the strong external force of the stacking direction from multiple batteries, thus tension band
In the case where bending, when tension band is there are when bump, the bending of tension band is preferentially generated in bump.That is, even if
Assuming that bump bends, since bump is only located at part tension band, opposite with the side of end plate, so bending
Part will not be contacted with battery, so being also able to suppress the breakage of battery caused by the contact of curved part.
For example, the bump 43a and 43b of tension band 43 are only located at respectively to be opened in battery module 400 shown in Fig. 4
The part of power band 43, opposite with the side of end plate 41 and 42 side.Similarly, the bump 44a of tension band 44 and
44b is only located at the part of tension band 44, opposite with the side of end plate 41 and 42 side respectively.
In the case where thering are multiple batteries 40 to expand and shrink in battery module 400, bump 43a, 43b,
44a and 44b preferentially generates flexible deformation, and tension band 43 and 44 can generate plastic deformation and inhibit damaged.In addition,
From the stacking directions of multiple batteries 40 of battery module 400 by strong external force in the case where, bump 43a, 43b, 44a and
44b is preferentially deformed.In this case, even if bump 43a, 43b, 44a and 44b bend, due to tension band
Curved position (position more than any one of bump 43a, 43b, 44a and 44b) do not contacted with multiple batteries 40,
So being also able to suppress the breakage of battery.
In addition, the battery module of the disclosure can have 1 or more tension band.At least one of these tension bands
Power band has bump.Can with the purpose of required battery module and purposes etc. matchingly, make concave and convex part in 1 or
Any part of any tension band in the multiple tension bands of person.
In the disclosure, it as long as the bump of tension band can generate flexible deformation, is not specifically limited, can be to appoint
The form of meaning.Bump can also be only made of recess portion, can also be only made of protrusion, can also be by carrying out recess portion and protrusion
The structure being composed is constituted.In (a)~(e) of Fig. 5, the shape of several bumps is illustratively shown, but is not limited to
They.
It is illustrated for the bump 3a shown in Fig. 5 (a).Bump 3a includes 4 protrusion 3a1、3a2、3a3And
3a4.Each protrusion can generate flexible deformation along the direction of arrow may.In addition, 4 protrusion 3a1、3a2、3a3And 3a4Both may be used
To be respectively identical size and direction, or different sizes and direction.In addition, in Fig. 5 (a), 4 protrusions
3a1、3a2、3a3And 3a4With impartial interval, however, you can also not be impartial interval, in addition, 4 protrusion 3a1、3a2、3a3
And 3a4It can also be continuous.
In addition, Fig. 6 shows the perspective view of bump 3a shown in Fig. 5 (a).In the example of bump 3a shown in Fig. 6,
The width d of bump 3a is identical as the width D of tension band.That is, can be until the end to end of the width D of tension band
Bump 3a is arranged in range.Here, the width of tension band refers to the length in the face orthogonal with the stacking direction of multiple batteries, it is concave-convex
The width in portion refers to the length with the concaveconvex shape in the face of the width parallel of tension band.As long as in addition, not damaging the effect of the disclosure
Fruit, the width of bump also can be set to smaller than the width of tension band.
In the disclosure, the bump of tension band can be formed using well known gimmick production concaveconvex shape.For example, recessed
Protrusion can be obtained by embossing processing.
<end plate>
In the battery module of the disclosure, a pair of end plate is configured at the both ends of the stacking direction of multiple batteries, by tension band
Connection.In the disclosure, confining part is constituted by a pair of end plate and mentioned strain band.
End plate is not specifically limited, and can be made of well known structure.For example, it is also possible to be moulded by metal or fibre strengthening
Material etc. is constituted.As metal, stainless steel can be enumerated.In addition, as fiber-reinforced plastic, such as use carbon fiber-reinforced modeling
Material, fiberglass-reinforced plastic etc., but it is not limited to them.
" other components "
In the disclosure, other than the confining part of multiple batteries of above-mentioned stacking and the multiple batteries of constraint, according to
Usage, the purpose of battery module, battery module also can have other components.For example, can be gone back between multiple batteries
With intermediate plate.Hereinafter, as other components, the side of the disclosure module in the case that illustratively explanation has intermediate plate
Case.
<intermediate plate>
The battery module of the disclosure can also have intermediate plate.Intermediate plate can become for ensureing between multiple batteries
The space of insulation, so the battery module of the disclosure preferably also has intermediate plate.For example, battery mould can will be constituted by intermediate plate
Multiple batteries of block are divided into the multiple battery packs for being respectively provided with multiple batteries.In this case, the battery pack that can will be divided into
It is attached with other battery packs, realizes Towards Higher Voltage and high capacity.In addition, in this case, even if assuming 1 battery
Group is damaged, and can also be acted using remaining battery pack.In addition in turn, in this case, battery pack is respectively used to
The driving of front-wheel and rear-wheel is used, so as to realize four-wheel drive.
In addition, the bump of tension band is preferably located in only in the case where the battery module of the disclosure also has intermediate plate
The part opposite at least one of end plate and intermediate plate side.Accordingly, the breakage of tension band can not only be inhibited, and
It can also inhibit breakage of the stacking direction from multiple batteries by the battery in the case where strong external force.In turn, according to tension
The viewpoint balanced as binding effect of the band for multiple batteries, the bump of tension band can also be only located at and intermediate plate
The opposite part in side.In addition, the side of intermediate plate refers to the side of the intermediate plate orthogonal with the stacking direction of multiple batteries.
Fig. 7 shows the example of mode in the case where also having intermediate plate between multiple batteries.Battery module 700
Also there is intermediate plate 75 between multiple batteries 70.In this case, the bump 73a of tension band 73 is only located at and intermediate plate 75
The opposite part in side.Similarly, the bump 74a of tension band 74 is only located at the portion opposite with the side of intermediate plate 75
Point.According to such scheme, the breakage of tension band 73 and 74 can not only be inhibited, additionally it is possible to inhibit the layer from multiple batteries 70
Folded breakage of the direction by the battery in the case where strong external force.
In addition, can be inhibited using above structure the stacking direction from multiple batteries 70 by strong external force in the case where
Battery breakage.
Indicate that the skeleton diagram of mode when battery module 700 is equipped on vehicle is shown in FIG. 8.In Fig. 8 institute
In the scheme shown, tension band 73 and 74 is configured with the state erected perpendicularly to the ground, is configured with battery layers between them
Stack.But it is also possible to configure by using the stacking direction of battery as axis and in the way of being rotated by 90 °, i.e., tension band is relative to ground
Face horizontally configures, and configures stacked battery between them.
In fig. 8, in the battery module 700 for being equipped on vehicle, the bump 73a and 74a of tension band 73 and 74
It is only located at the part opposite with the side of intermediate plate 75.Thus, even if strong outer caused by assuming the side collision because of vehicle
Power and bump 73a and 74a bend, which will not be with multiple electricity
Pond 70 contacts, and is able to suppress the breakage of battery.
Claims (7)
1. a kind of battery module has multiple batteries of stacking and constrains the confining part of the multiple battery, wherein
The confining part includes being configured at described in a pair of end plate and connection at the both ends of stacking direction of the multiple battery
A pair of end plate and the tension band that the multiple battery is constrained with pressurized state,
The tension band has the bump for being able to carry out flexible deformation.
2. battery module according to claim 1, wherein
The bump is only located at the part opposite with the side of the end plate.
3. battery module according to claim 1 or 2, wherein
Also there is intermediate plate between the multiple battery.
4. battery module according to claim 3, wherein
The bump is only located at the part opposite at least one side of the end plate and the intermediate plate.
5. battery module described in any one according to claim 1~4, wherein
The tension band is made of metal or fiber-reinforced plastic.
6. battery module according to any one of claims 1 to 5, wherein
The bump is obtained by embossing processing.
7. battery module according to any one of claims 1 to 6, wherein
The multiple battery is all-solid-state battery.
Applications Claiming Priority (2)
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| JP2017-248220 | 2017-12-25 | ||
| JP2017248220A JP7056142B2 (en) | 2017-12-25 | 2017-12-25 | Battery module |
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| CN109962192A true CN109962192A (en) | 2019-07-02 |
| CN109962192B CN109962192B (en) | 2022-04-05 |
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| US (1) | US10950832B2 (en) |
| JP (1) | JP7056142B2 (en) |
| KR (1) | KR102135279B1 (en) |
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| CN114946079A (en) * | 2020-11-23 | 2022-08-26 | 株式会社 Lg新能源 | Battery module, battery pack including the same, and vehicle including the battery pack |
| CN115425352A (en) * | 2022-06-02 | 2022-12-02 | 远景动力技术(江苏)有限公司 | Battery module and electronic device |
| CN115513594A (en) * | 2021-06-23 | 2022-12-23 | 丰田自动车株式会社 | Electricity storage device |
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| US12049150B2 (en) * | 2019-03-29 | 2024-07-30 | Sanyo Electric Co., Ltd. | Power source device, and electric vehicle and electricity storage device employing same |
| DE102019109715B4 (en) * | 2019-04-12 | 2023-08-31 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Battery module for a motor vehicle and method for its manufacture |
| JP7230758B2 (en) * | 2019-09-27 | 2023-03-01 | トヨタ自動車株式会社 | Constraint structure of structure |
| DE102020201494B3 (en) * | 2020-02-07 | 2021-03-11 | Volkswagen Aktiengesellschaft | High-voltage battery for an electrically powered vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2019114477A (en) | 2019-07-11 |
| JP7056142B2 (en) | 2022-04-19 |
| KR102135279B1 (en) | 2020-07-17 |
| CN109962192B (en) | 2022-04-05 |
| KR20190077215A (en) | 2019-07-03 |
| US20190198830A1 (en) | 2019-06-27 |
| US10950832B2 (en) | 2021-03-16 |
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